Meguiar's One Step Polishing Compound This advanced aggressive, yet safe compound will clean and restore gloss to the gelcoat surface in one step; Removes moderate-heavy oxidation, scratches, stains and tough water spots on all fiberglass and marine painted gel coat or RV surfaces; Restores color and leaves a rich gloss on the treated surface; Incredible results by hand or machine; 32 Ounce bottle;